Gammons



(No Modl.)

F. G. GAMMONS & G. M. SHAW.

GOTTON GIN BLAST PLUE.

Patented Mar. 26, 1895.

NITED STATES.

' PATENT OFFICE.

FERDINAND C. GAMMONS AND CLARENCE M. SHAW, OF BRIDGEWATER, MASSACHUSETTS, ASSIGNORS TO THE EAGLE COTTON GIN COMPANY,

OF SAME PLACE.

COTTON-GIN BLAST-(FLU E.

SPECIFICATION forming part of Letters Patent No. 536,200, dated March 26, 1895. Application filed January 11, 1 3 95. Serial No. 534.557- (No model.)

To all whom it may concern:

Cotton-Gin Blast-Flues for Conveying Lint- Cotton from the Gin to the Condenser or other Receptacle, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which Figure 1 is a plan of a battery of cotton-] gins provided with blast-fines constructedin accordance with our invention. Fig. 2 is an enlarged perspective view of the hood or end of the blast-flue, which is connected with e the outlet opening at the back of the cottongin. Fig; 3 is a longitudinal horizontal section through the hood shown in Fig. 2. Fig. 4 is a transverse vertical section on the line 4, 4, of Fig. 3.

Our invention relates to the construction of cotton-gin blast-fines for conveying lint-cotton from the gin to the condenser or other location, and has for its object to reduce to a minimum thefriction of the air and cotton in the blast-flue at the hood or point where said blast-flue is connected with the gin,and also to avoid clogging or obstruction of the flue by the concentration of cotton at this point. Hitherto it has been customary to connect the gin with the blast-flue by means of a ninety-degree elbow having a flaring mouth or hood fitting the discharge-opening at the back of the gin. This construction however is objectionable on account of the friction of the air and cotton as they impinge against the inclined sides of the flaring hood by which they are directed into the elbow or common center where another sudden change of direction occurs, and as the cotton from all parts of the discharge-opening at the back of the gin is concentrated at the said elbow, it frequently accumulates at this point, thus clogging the flue and stopping its operation.

Our invention is designed to obviate these difficulties and consists in a blast-flue c0n-' necting-hood having an inlet opening corre opening at the back of the gin to which the hood is fitted, and having a straight semitubular back and two substantially parallel end-walls extending forward at an angle from the ends of its inlet opening, the said semitubular back and the forward end wall merging into an outlet separate from and independent of the hoods and flues of the other gins an'dadapted thereby tohave an individual flue leading from said outlet tothe point of delivery, ashereinafter more fully set forth and specifically claimed.

In the said drawings A, A, A, A, represent a battery of cotton gins, each of which is 'provided with a separate and independent blastflue B, for conducting the lint-cotton to the condenser C, or other desired location.

D represents the hood which forms the connection between the discharge-opening at the back of the gin A, and the main portion of the blast-flue B. This hood D, which is preferably, composed of sheet metal, is provided with an elongated rectangular inlet opening b, corresponding in size and shape to the discharge-opening at the back of the gin'to which the hood is fitted, as shown in Fig. 1, the top and bottom edges of the side-Walls c, c, and the flanges d, e, forming suitable means of attachment to flanges around the edge of said discharge-opening of the gin.

f represents the back of the hood which is located directly opposite 'the dischargeopening at the back of the gin, and is of semi-tubular form or curved transversely, as shown in Figs. 2, 3, and 4, in which form it presents a smooth rounded surface without angles, and odors the least possible resistance or obstruction to the free passage of the lintcotton to the tubular outlet g, of the hood,

at which point it is connected'with the main portion of the flue B.

The end-wall h, of the hood opposite to its outlet g, is inclined forward toward the same at an acute angle, whereby it is caused the outlet g, whereby the sectional area of the hood is gradually increased in size as it approaches said outlet g, thus avoiding liability of clogging or obstruction by affording greater space near the outlet end of the hood to accommodate the cotton coming from all parts of the discharge-opening at the back of the gin.

The end-wall 7c, of the hood nearest to the outlet g, isalso inclined forward at an angle to the inlet-opening b, and is substantially parallel with the opposite end-wall h, and consequently offers no obstruction or resistance to the air and cotton as it passes from this end of the discharge-opening at the back of the gin to the outlet g.

The end-wall h, is preferably provided with a glass covered opening m, to permit of a view of the interior of the hood, said opening, when the glass is removed, serving as a handhole to afford access to the interior of the hood.

Bythe elnploymentof our improved hood, elbows of ninety degrees hitherto used to bring the blast-fines into a position parallel with the gins in the direction of their length are entirely dispensed with, and all of the cotton as it leaves the gin starts in a natural course or direction toward the point of delivery and continues the same uninterruptedly with the least possible amount of friction, the elbows used being bent at a very slight angle, as shown in Fig. 1. Hence with our construction the blast or conveyor-flue is practically shortened to a minimum, and the cotton caused to pass in the most direct line possible from the gin to the point of delivery, thus distributing the friction over the entire length of thefiue instead of concent rating it at one point, thereby avoiding clogging and obstruction, whereas with the flaring-mouthed hood heretofore in use, a portion of the cotton on leaving the gin was forced by the inward incline on one side of the hood to start in a direction exactly opposite to that finally taken, thus causing it to travel a longer distance, and also be retarded by excessive fric tion and sudden changes of direction before reaching the main portion of the blast-fine, all of which difficulties are avoided in a hood constructed in accordance with our invention.

What we claim as our invention, and desire to secure by Letters Patent, is

1. In a cotton-gin blast-flue, a connecting hood, having an inlet-opening corresponding in size to that of the discharge-opening at the back of the gin to which the hood is fitted, and having a straight semi-tubular back, and two substantially parallel end-walls extending forward at an angle from the ends of its inlet opening, the said semi-tubular back and the forward end Wall merging into an outlet separate from and independent of the hoods and fines of the other gins and adapted thereby to have an individual flue from said outlet to the point of delivery, substantially as set forth.

2. In a cotton-gin blast-flue, a connectinghood, having an inlet opening corresponding in size to that of the discharge-opening at the back of the gin to which the hood is fitted, and having a straight semi-tubular back f, and two substantially parallel end-walls h, 70, extending forward at an angle from the ends of its inlet-opening, the sectional area of said hood increasing in size as it approaches the outlet or point where it is connected with the main portion of the blast-flue, the said outlet being formed at the juncture of the semitubular back with the forward end wall and wholly independent of and separate from the hoods and fines of other gins to provide for an individual fine from said outlet to the point of delivery, substantially as set forth.

3. In a cotton-gin blast-flue, a connecting hood D, having an inlet-opening b in front, corresponding in size to that of the dischargeopening at the back of the gin to which the hood is fitted, and having a tubular outlet g, a straight back f of semi-circular form in cross section and inclined at an angle to the plane of the inlet-opening b, and two substantially parallel end-walls h, 7c, extending forward at an angle from the ends of the inletopening I), the end wall in and the tubularback merging into the tubular outlet 9 and said outlet being separate from and independent of the hoods and fines of other gins to provide for an individual flue therefrom to the point of delivery the sectional area of said hood gradually increasing in size from the end-wall h, to the outlet or point where it is connected with the main portion of the blastflue, all constructed to operate substantially in the manner and for the purpose described.

Witness our hands this 7th day of January, A. D. 1895.

FERDINAND C. GAMMONS. CLARENCE M. SHAW. In presence of- WM. H. BEVAN, A. C. BOWMAN. 

